Quiz 4 Study Guide

Question 1

the force of gravity on an object

Answer 1

weight

Question 2

the skeleton of a building, gives it its shape

Answer 2

frame

Question 3

the attracting force between two objects

Answer 3

gravity

Question 4

a machine that makes lifting heavy things easier

Answer 4

pulley

Question 5

a device that generates electromagnetic force

Answer 5

electromagnet

Question 6

a substance that minimizes friction

Answer 6

lubricant

Question 7

the part of a lever which holds and balances weight

Answer 7

fulcrum

Question 8

the base of a building

Answer 8

foundation

Question 9

Does a smooth surface increase friction or decrease friction?

Answer 9

decrease

Question 10

A screw is an example of which type of machine?

Answer 10

inclined plane

Question 11

Which has more gravity: the moon or the earth?

Answer 11

earth

Question 12

Does an upright pyramid have a high center of gravity or low center of gravity?

Answer 12

low

Question 13

A car uses a wheel and axle to overcome what force?

Answer 13

friction

Question 14

Having two opposite sides that work differently

Answer 14

polarity

Question 15

Grease is a good example of a ________________.

Answer 15

lubricant

Question 16

The earth acts like a giant ___________________.

Answer 16

electromagnet

Question 17

Is a magnet’s force stronger or weaker at its poles?

Answer 17

stronger